Automotive maintenance system

ABSTRACT

A maintenance system for use with an electrical system of an automotive vehicle includes an electronic battery tester configured to test a battery of the automotive vehicle. The electronic battery tester includes tracking circuitry carried therein. A base station is configured to receive the electronic battery tester and includes a microprocessor configured to detect positioning of the electronic battery tester in the base station using the battery tester tracking circuitry.

CROSS-REFERENCE TO RELATED APPLICATION

The present application is based on and claims the benefit of U.S. provisional patent application Ser. No. 62/024,037, filed Jul. 14, 2014, the content of which is hereby incorporated by reference in its entirety.

BACKGROUND

The present invention relates to battery testers of the type used to test storage batteries. More specifically, the present invention relates to a battery maintenance system including a base station configured to carry components of the battery maintenance system.

Electrical systems such as those that are used in automotive vehicles, consist of a number of discrete components or systems which are interconnected. As used herein, the term “automotive vehicle” includes both vehicles which utilize an internal combustion engine, vehicles which utilize electric motors, as well as hybrid vehicles which include both types of systems. Techniques for measuring and utilizing parameters of electrical systems of automotive vehicles are known. Examples of various types of battery testers, monitors and other related equipment are set forth in U.S. Pat. No. 3,873,911, issued Mar. 25, 1975, to Champlin; U.S. Pat. No. 3,909,708, issued Sep. 30, 1975, to Champlin; U.S. Pat. No. 4,816,768, issued Mar. 28, 1989, to Champlin; U.S. Pat. No. 4,825,170, issued Apr. 25, 1989, to Champlin; U.S. Pat. No. 4,881,038, issued Nov. 14, 1989, to Champlin; U.S. Pat. No. 4,912,416, issued Mar. 27, 1990, to Champlin; U.S. Pat. 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No. 09/653,963, filed Sep. 1, 2000, entitled SYSTEM AND METHOD FOR CONTROLLING POWER GENERATION AND STORAGE; U.S. Ser. No. 10/174,110, filed Jun. 18, 2002, entitled DAYTIME RUNNING LIGHT CONTROL USING AN INTELLIGENT POWER MANAGEMENT SYSTEM; U.S. Ser. No. 10/258,441, filed Apr. 9, 2003, entitled CURRENT MEASURING CIRCUIT SUITED FOR BATTERIES; U.S. Ser. No. 10/681,666, filed Oct. 8, 2003, entitled ELECTRONIC BATTERY TESTER WITH PROBE LIGHT; U.S. Ser. No. 60/587,232, filed Dec. 14, 2004, entitled CELLTRON ULTRA, U.S. Ser. No. 60/653,537, filed Feb. 16, 2005, entitled CUSTOMER MANAGED WARRANTY CODE; U.S. Ser. No. 60/665,070, filed Mar. 24, 2005, entitled OHMMETER PROTECTION CIRCUIT; U.S. Ser. No. 60/694,199, filed Jun. 27, 2005, entitled GEL BATTERY CONDUCTANCE COMPENSATION; U.S. Ser. No. 60/705,389, filed Aug. 4, 2005, entitled PORTABLE TOOL THEFT PREVENTION SYSTEM, U.S. Ser. No. 11/207,419, filed Aug. 19, 2005, entitled SYSTEM FOR AUTOMATICALLY GATHERING BATTERY INFORMATION FOR USE DURING BATTERY TESTER/CHARGING, U.S. Ser. No. 60/712,322, filed Aug. 29, 2005, entitled AUTOMOTIVE VEHICLE ELECTRICAL SYSTEM DIAGNOSTIC DEVICE, U.S. Ser. No. 60/713,168, filed Aug. 31, 2005, entitled LOAD TESTER SIMULATION WITH DISCHARGE COMPENSATION, U.S. Ser. No. 60/731,881, filed Oct. 31, 2005, entitled PLUG-IN FEATURES FOR BATTERY TESTERS; U.S. Ser. No. 60/731,887, filed Oct. 31, 2005, entitled AUTOMOTIVE VEHICLE ELECTRICAL SYSTEM DIAGNOSTIC DEVICE; U.S. Ser. No. 60/751,853, filed Dec. 20, 2005, entitled BATTERY MONITORING SYSTEM; U.S. Ser. No. 60/751,853, filed Dec. 20, 2005, entitled BATTERY MONITORING SYSTEM; U.S. Ser. No. 11/356,443, filed Feb. 16, 2006, entitled ELECTRONIC BATTERY TESTER WITH NETWORK COMMUNICATION; U.S. Ser. No. 60/847,064, filed Sep. 25, 2006, entitled STATIONARY BATTERY MONITORING ALGORITHMS; U.S. Ser. No. 60/950,182, filed Jul. 17, 2007, entitled BATTERY TESTER FOR HYBRID VEHICLE; U.S. Ser. No. 60/973,879, filed Sep. 20, 2007, entitled ELECTRONIC BATTERY TESTER FOR TESTING STATIONARY BATTERIES; U.S. Ser. No. 60/992,798, filed Dec. 6, 2007, entitled STORAGE BATTERY AND BATTERY TESTER; U.S. Ser. No. 61/061,848, filed Jun. 16, 2008, entitled KELVIN CLAMP FOR ELECTRONICALLY COUPLING TO A BATTERY CONTACT; U.S. Ser. No. 12/697,485, filed Feb. 1, 2010, entitled ELECTRONIC BATTERY TESTER; U.S. Ser. No. 12/712,456, filed Feb. 25, 2010, entitled METHOD AND APPARATUS FOR DETECTING CELL DETERIORATION IN AN ELECTROCHEMICAL CELL OR BATTERY; U.S. Ser. No. 61/311,485, filed Mar. 8, 2010, entitled BATTERY TESTER WITH DATABUS FOR COMMUNICATING WITH VEHICLE ELECTRICAL SYSTEM; U.S. Ser. No. 61/313,893, filed Mar. 15, 2010, entitled USE OF BATTERY MANUFACTURE/SELL DATE IN DIAGNOSIS AND RECOVERY OF DISCHARGED BATTERIES; U.S. Ser. No. 12/769,911, filed Apr. 29, 2010, entitled STATIONARY BATTERY TESTER; U.S. Ser. No. 61/330,497, filed May 3, 2010, entitled MAGIC WAND WITH ADVANCED HARNESS DETECTION; U.S. Ser. No. 61/348,901, filed May 27, 2010, entitled ELECTRONIC BATTERY TESTER; U.S. Ser. No. 61/351,017, filed Jun. 3, 2010, entitled IMPROVED ELECTRIC VEHICLE AND HYBRID ELECTRIC VEHICLE BATTERY MODULE BALANCER; U.S. Ser. No. 12/818,290, filed Jun. 18, 2010, entitled BATTERY MAINTENANCE DEVICE WITH THERMAL BUFFER; U.S. Ser. No. 61/373,045, filed Aug. 12, 2010, entitled ELECTRONIC BATTERY TESTER FOR TESTING STATIONARY STORAGE BATTERY; U.S. Ser. No. 12/888,689, filed Sep. 23, 2010, entitled BATTERY TESTER FOR ELECTRIC VEHICLE; U.S. Ser. No. 61/411,162, filed Nov. 8, 2010, entitled ELECTRONIC BATTERY TESTER; U.S. Ser. No. 13/037,641, filed Mar. 1, 2011, entitled: MONITOR FOR FRONT TERMINAL BATTERIES; U.S. Ser. No. 13/098,661, filed May 2, 2011, entitled METHOD AND APPARATUS FOR MEASURING A PARAMETER OF A VEHICLE ELECTRICAL SYSTEM; U.S. Ser. No. 13/113,272, filed May 23, 2011, entitled ELECTRONIC STORAGE BATTERY DIAGNOSTIC SYSTEM; U.S. Ser. No. 13/152,711, filed Jun. 3, 2011, entitled BATTERY PACK MAINTENANCE FOR ELECTRIC VEHICLE; U.S. Ser. No. 13/205,949, filed Aug. 9, 2011, entitled ELECTRONIC BATTERY TESTER FOR TESTING STORAGE BATTERY; U.S. Ser. No. 61/558,088, filed Nov. 10, 2011, entitled BATTERY PACK TESTER; U.S. Ser. No. 13/357,306, filed Jan. 24, 2012, entitled STORAGE BATTERY AND BATTERY TESTER; U.S. Ser. No. 61/665,555, filed Jun. 28, 2012, entitled HYBRID AND ELECTRIC VEHICLE BATTERY MAINTENANCE DEVICE; U.S. Ser. No. 13/668,523, filed Nov. 5, 2012, entitled BATTERY TESTER FOR ELECTRIC VEHICLE; U.S. Ser. No. 13/672,186, filed Nov. 8, 2012, entitled BATTERY PACK TESTER; U.S. Ser. No. 61/777,360, filed Mar. 12, 2013, entitled DETERMINATION OF STARTING CURRENT IN AN AUTOMOTIVE VEHICLE; U.S. Ser. No. 61/777,392, filed Mar. 12, 2013, entitled DETERMINATION OF CABLE DROP DURING A STARTING EVENT IN AN AUTOMOTIVE VEHICLE; U.S. Ser. No. 13/827,128, filed Mar. 14, 2013, entitled HYBRID AND ELECTRIC VEHICLE BATTERY MAINTENANCE DEVICE; U.S. Ser. No. 61/789,189, filed Mar. 15, 2013, entitled CURRENT CLAMP WITH JAW CLOSURE DETECTION; U.S. Ser. No. 61/824,056, filed May 16, 2013, entitled BATTERY TESTING SYSTEM AND METHOD; U.S. Ser. No. 61/859,991, filed Jul. 30, 2013, entitled METHOD AND APPARATUS FOR MONITORING A PLURALITY OF STORAGE BATTERIES IN A STATIONARY BACK-UP POWER SYSTEM; U.S. Ser. No. 14/039,746, filed Sep. 27, 2013, entitled BATTERY PACK MAINTENANCE FOR ELECTRIC VEHICLE; U.S. Ser. No. 61/915,157, filed Dec. 12, 2013, entitled BATTERY TESTER AND BATTERY REGISTRATION TOOL; U.S. Ser. No. 61/928,167, filed Jan. 16, 2014, entitled BATTERY CLAMP WITH ENDOSKELETON DESIGN; U.S. Ser. No. 14/204,286, filed Mar. 11, 2014, entitled CURRENT CLAMP WITH JAW CLOSURE DETECTION; U.S. Ser. No. 14/276,276, filed May 13, 2014, entitled BATTERY TESTING SYSTEM AND METHOD; U.S. Ser. No. 62/024,037, filed Jul. 14, 2014, entitled COMBINATION SERVICE TOOL; U.S. Ser. No. 62/055,884, filed Sep. 26, 2014, entitled CABLE CONNECTOR FOR ELECTRONIC BATTERY TESTER; U.S. Ser. No. 14/565,689, filed Dec. 10, 2014, entitled BATTERY TESTER AND BATTERY REGISTRATION TOOL; U.S. Ser. No. 14/598,445, filed Jan. 16, 2015, entitled BATTERY CLAMP WITH ENDOSKELETON DESIGN; U.S. Ser. No. 62/107,648, filed Jan. 26, 2015, entitled ALTERNATOR TESTER; U.S. Ser. No. 62/137,491, filed Mar. 24, 2015, entitled BATTERY MAINTENANCE SYSTEM; U.S. Ser. No. 62/154,251, filed Apr. 29, 2015, entitled CALIBRATION AND PROGRAMMING OF IN-VEHICLE BATTERY SENSORS; U.S. Ser. No. 62/155,045, filed Apr. 30, 2015, entitled CALIBRATION AND PROGRAMMING OF IN-VEHICLE BATTERY SENSORS; U.S. Ser. No. 62/161,555, filed May 14, 2015, entitled ALTERNATOR TESTER; all of which are incorporated herein by reference in their entireties.

There is an ongoing need for improved testing and diagnostic equipment.

SUMMARY

A maintenance system for use with an electrical system of an automotive vehicle includes an electronic battery tester configured to test a battery of the automotive vehicle. The electronic battery tester includes tracking circuitry carried therein. A base station is configured to receive the electronic battery tester and includes a microprocessor configured to detect positioning of the electronic battery tester in the base station using the battery tester tracking circuitry.

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a perspective view of an automotive diagnostic or maintenance system in accordance with one example embodiment.

FIG. 2 is a simplified block diagram of an electronic battery tester of FIG. 1.

FIG. 3 is a simplified block diagram of an amp clamp/current sensor of FIG. 1.

FIG. 4 is a simplified block diagram of an OBDII communicator of FIG. 1.

FIG. 5 is a diagram showing Kelvin connectors of FIG. 1.

FIG. 6 is a simplified block diagram of a base station shown in FIG. 1.

FIG. 7 is a simplified schematic diagram including measurement circuitry of the electronic battery tester of FIG. 2.

DETAILED DESCRIPTION OF ILLUSTRATIVE EMBODIMENTS

Automotive vehicle testing and diagnostic systems are known in the art. One particularly difficult area for the use and operation of such systems is in aftermarket service centers. Typically, such service centers are required to work on many different types and makes of automotive vehicles. Further, the skill level of technicians in such establishments may vary widely. Additionally, such facilities typically operate at very high work volume. Thus, equipment may be subject to harsh conditions including rough handling as well as improper usage.

In order to address the above issues, the present invention provides an automotive test system which includes a number of features. The system can be built into a unitary carrying case suitable such an environment. Specifically:

-   -   Case made from glass-filled PP (virtually indestructible)     -   Bright orange to easily locate tool     -   Large enough that is makes it difficult to pilfer     -   Can easily incorporate anti-theft technology     -   Storage location for cables     -   Storage location for accessories     -   High current disconnect (the same cables can be used for testing         AND jump starting)

Additionally, the system may include various accessories. In an aftermarket type environment, it may be advantageous to track and manage such accessories. For example:

-   -   Some or all of accessories may be wireless to eliminate issues         with belts and fans     -   Wireless accessories are more reliable due to eliminating         connectors     -   The system can monitor when accessories have been returned     -   This alleviates the problem of accessories left attached to         vehicle     -   Magnet home sensor     -   Charger home sensor     -   The system can be configured to prevent a test from completing         unless accessories have been returned     -   The “Cloud” can know when accessories are checked out and         returned     -   Accessories are Blaze Orange to help technician spot them

Vehicle diagnostic and testing systems may include a capability to provide a jump start to a battery of a vehicle. For example, such a jump start ability may be provided with internal lithium batteries. Thus, the system may include:

-   -   Jump start current monitor         -   Protects vehicle and tool     -   Built in charger for recharging the jump start batteries     -   High rate lithium batteries         -   Battery can recharge from AC adapter         -   Battery can opportunity recharge from Battery Under Test

The same battery that is used to provide the jump start capability may also be used for testing purposes. For example, the internal battery of the system can be used to apply a current to the battery or other system of the vehicle in order to perform a current acceptance test. This current may be a relatively large current providing significant analysis capability.

The same battery used to perform jump starting may also be used to maintain a memory of the vehicle to save vehicle parameters. For example, when the battery of a vehicle is disconnected, it is advantageous to provide power to the vehicle to maintain the memory in the vehicle. The internal jump start battery may be used to perform this “memory saver” functionality. The memory saver may include a separate relay and fusing. Further, a current monitor can be provided to monitor usage of the meter and protect the vehicle and the diagnostic tool.

An “amp-clamp” type current probe can be provided for measurement. In addition to performing such measurement functionality, the amp-clamp can operate wirelessly and may include recharging capabilities, for example from an AC adapter. Similarly, a wireless amp-clamp may be capable of recharging using the jump start battery.

The system may include Kelvin connectors for use in performing various tests such as measuring a dynamic parameter of a system or battery of the vehicle. In one configuration, the same Kelvin connectors are used to perform jump starting. In such a configuration, a high capacity cable or dual-gage cable may be implemented. High temperature insulation may be employed to allow the use of a smaller gage wire which is more flexible than a larger gage wire.

The system may include a communication hub which provides communication through the Ethernet connection. Networking techniques such as a static IP address can be used or an assigned IP address using the DHCP protocol. Other aspects include:

-   -   Wi-Fi     -   Plug in cellular modem     -   Interface for large screen television         -   Used for point of purchase advertising         -   Charging complete notifications         -   Technician performance, competition events         -   Tools checked out and returned         -   Suggested replacement batteries

The main unit of the diagnostic device may include communication abilities, for example, to communicate with a smartphone, tablet, portable computer or the like. The system may also act as a master for communication with the OBDII, interface, a wireless amp-clamp, a communication hub, as well as other accessories. Any appropriate protocol may employed including Bluetooth® or Bluetooth LE.

The OBDII reader can be used to perform diagnostics and may capture information. Such examples include:

-   -   Used to capture VIN and other key parameters from the vehicle     -   Battery registration     -   Determine if power interrupted to advise reset procedures     -   Diagnostic to facilitate return of accessory     -   Powered by vehicle     -   Also can accept 12 VDC power cable to use as memory saver         attachment point

In one configuration, an amp-clamp is provided for measuring current that includes additional functionality such as an infrared sensor for measuring temperature or a barcode reader for reading barcodes. Such a unit may be used for performing electrical tests when the vehicle is operating, performing current acceptance tests as well as providing other functionality including:

-   -   Low rate and high rate capable     -   Diagnostic to facilitate return of accessory     -   Integral IR temp sensor         -   Used to read battery temperature             -   Takes advantage of single radio             -   Utilizes power on button to snap reading     -   Integral (removable) barcode reader         -   Used to read VIN         -   Used to read serial numbers             -   Takes advantage of single radio             -   Utilizes power on button to snap reading     -   Optional barcode modules:         -   1d, 2d, QR code         -   Laser, CCD, etc.     -   Internal battery         -   Rechargeable lithium         -   Charges when returned to case         -   Contacts similar to cordless phone

The particular communication provided may be in accordance with any appropriate techniques. For example, the tester may include one radio/RF communication circuit for use in Bluetooth communication to a smartphone, tablet, PC or other component. A second radio can be provided for communicating with components of the test system including a wireless amp-clamp, IR sensor, barcode reader, OBDII reader, communication hub, etc. The communication hub may include both a radio for use using Bluetooth, such as Bluetooth LE for communication with a tester as well as other wireless communication circuitry. Example other additional circuitries include circuitry for Wi-Fi communication, a cellular modem, or wired communication, for example, through an Ethernet connection. The amp-clamp having the included IR sensor and barcode reader may include communication circuitry for providing Bluetooth communication such as using Bluetooth LE. Similarly, the OBDII reader may include radio communication circuitry for using Bluetooth LE to communicate from the reader to the main test system.

FIG. 1 is an exploded view of a battery maintenance system 100 in accordance with one example embodiment. Battery maintenance system 100 includes an electronic battery tester 102 and a base station 104. Base station 104 includes a base 106 and a cover or lid 108. In the configuration shown in FIG. 1, base station 104 is configured for portable operation, however, a fixed or less mobile base station configuration may also be employed.

The base station 104 includes a number of receiving areas 110A-D for receiving various components (or accessories) of the battery maintenance system 100. For example, battery tester 102 is received in receiving area 110A. FIG. 1 also illustrates an amp clamp (current sensor) 120 which is received in receiving area 110C, a OBDII communicator 122 which is received in receiving area 110B and Kelvin connectors 124 which are received in receiving area 110D.

Any number of battery maintenance tools or accessories may be contained in receptacles of the base station 104 and the invention is not limited to those specifically discussed herein. Additionally, the Kelvin connectors 124 are illustrated as being connected to a plug connector 111A. This plug connector may be used for coupling the cabling to the battery tester 102. Additionally, the plug 111A may be plugged into a socket 111B carried in the base station 104. The socket 111B may be used in a configuration which a battery carried within the base station 104 is used for jump starting the vehicle. In another example configuration, battery testing circuitry, or other testing circuitry is carried in base station 104 and electrically coupled to Kelvin connectors 124 through plug 111A and socket 111B.

FIG. 2 is a simplified block diagram showing components and circuitry of the electronic battery tester 102. Battery tester 102 includes a microprocessor 200 coupled to battery test circuitry 202. Battery test circuitry 202 may operate in accordance with any battery testing procedure and one example procedure is discussed below in more detail. Battery test circuitry 202 is shown as coupled to Kelvin connector circuitry 204 and amp clamp circuitry 206. Microprocessor also couples to a display 220 and user input/output 222. An additional input/output circuitry 224 is illustrated along with wireless input/output circuitry 226. Microprocessor 200 operates in accordance with instructions stored in memory 230. A power supply 232 is illustrated and coupled to an optional battery 234. Power supply 232 may obtain power through the connection to a battery under test, may obtain power through internal battery 234, may obtain power through the base station 104, or from some other source. In one configuration, battery 234 is charged when the battery tester 102 is coupled to a battery under test or when the battery tester 102 is coupled to base station 104.

During operation, microprocessor 200 performs a test on a storage battery using connector circuitry 204 and optional amp clamp circuitry 206. The amp clamp circuitry 206 may also be used to test other electrical components of an automotive vehicle such as, for example, a starter motor. The connection to the amp clamp 120 shown in FIG. 1 through amp clamp circuitry 206 may be a wired connection, or, for example, may be a wireless connection through wireless I/O 226. Wireless I/O circuitry 226 may also be used to communicate with the OBDII communicator 122 and/or base station 104. Base station 104 may also be used to relay communications to another location such as a centralized location.

The microprocessor 200 provides information to an operator using, for example, display 220 and may receive commands or other user input through user I/O 222. I/O 224 may be used for communicating with other components or devices. For example, a remote printer may be accessed using circuitry 224. The microprocessor can communicate with the OBDII databus of the vehicle using the OBDII communicator 122. For example, this information can be used to determine information about the vehicle under test, information about usage of the vehicle under test, information about the storage battery of the vehicle or other information related to the vehicle. Further, the communicator 1222 may be used to provide data signals onto the OBDII databus of the vehicle. This may also be used to store information or other parameters in the vehicle, or control operation of components of the vehicle.

FIG. 2 also illustrates tracking circuitry 240 which is used by circuitry in base station 104 to identify a location of the battery tester 102. For example, the tracking circuitry may include addressing information whereby base station 104 may identify a unique battery tester 102 when it is placed into the receiving area 110A of the base 106 shown in FIG. 1. Note that the receiving area 110A illustrated in FIG. 1 may also include an electrical connection for coupling to power supply 232 of the battery tester 102.

FIG. 3 is a simplified block diagram of amp clamp/current sensor 120. Sensor 120 includes a current probe 300 coupled to measurement circuitry 302. Probe 300 may operate in accordance with any appropriate technique for a particular use. Such techniques include inductive coupling, the use of a Hall Effect sensor, or some other technique including a shunt. Measurement circuitry provides an output to wireless I/O circuitry 304 related to the measured current. This information is transmitted wirelessly to the battery tester 102 shown in FIG. 2. The current sensor 120 includes a power supply circuit 310 for providing power to the device. An internal battery 312 may be used for storing power. The battery 312 may be charged, for example, through a connection through power supply 310 to the receiving area 110C of base station 104. Tracking circuitry 326 is also provided. As discussed below, this may include addressing information and may be used to identify the positioning of sensor 120 within the receiving region 110 of base station 104.

FIG. 3 also illustrates an optional optical sensor 320 carried by current sensor 120. Optical sensor 320 may be used to receive optical information such as, for example, information provided by a barcode. The optical sensor 320 can be used to read information from the vehicle, for example, a VIN identification number of the vehicle, as well as information related to various components of the vehicle including serial numbers carried on storage batteries or other components of the vehicle. In another example configuration, optical sensor 320 comprises an infrared sensor for use in sensing temperature of various components of the vehicle or other components. For example, battery temperature can be used as part of a battery test.

In another example configuration, the system 100 can be used for providing a jumpstart to a battery of a vehicle. In one such example configuration, the internal battery 234 of tester 102 is coupled to Kelvin connector circuitry 204 to apply a voltage to the battery for starting the vehicle using Kelvin connectors 124. In such a configuration, the battery 234 should be able to deliver sufficient current at a high enough voltage to activate the starter motor of the vehicle. For example, a rechargeable lithium battery may be employed. In another related configuration, a “memory saver” function is provided by system 100. This can be used if the battery of a vehicle is disconnected or removed from the vehicle in order to maintain the memory and other stored information within the vehicle. For example, the vehicle may be powered using battery 234 through the Kelvin connectors 124. Other connection mechanisms may also be employed such as, for example, a connection to the OBDII databus, a connection through a “cigarette lighter” of the vehicle, etc.

The tracking function discussed herein may also be used as a component of the testing function. For example, in order to ensure that all accessories are returned to their proper location, the system 100 can be configured to only provide a test result once all of the accessories are returned to their proper location within the base station 104. Batteries or storage systems within the various components can store power during the testing process in which power is received from the battery or the vehicle under test. Other charging techniques may also be employed such as, for example, through an electrical connection to the base station 104. The amp clamp 120 may also include additional electronic circuitry and input/output circuitry to perform tests of its own. For example, such circuitry can be used to provide an operator with information related to the amount of current being sensed during a particular operation of the vehicle. Other diagnostic functionality may also be implemented.

FIG. 4 is a simplified block diagram of the OBDII communicator 122 shown in FIG. 1. Communicator 122 includes an OBDII interface 400 for connection to an OBDII data port of an automotive vehicle. This allows a two-way communication with the databus of the vehicle. Although an OBDII interface is illustrated, interface 400 may communicate with any type of vehicle databus or the like. Communicator 122 includes a power supply 410 for use in providing power to the device. An internal battery 412 is used for powering the communicator 122. The battery of 412 may be charged, for example, when the communicator 122 is placed in the receiving area 110B shown in FIG. 1. Wireless communication circuitry 420 is provided for use in wirelessly communicating with the battery tester 102. The wireless communication circuitry 420 may also be used to communicate with base station 104. Using this communication circuitry 420, the devices can communicate with the onboard databus of a vehicle using the OBDII interface 400. Tracking circuitry 430 is also provided and may include a unique address at which identifies the communicator 122. Further, the tracking circuitry 430 may be used by base station 104 to identify positioning of the communicator 122 within the receiving area 110B.

FIG. 5 is a simplified diagram of Kelvin connectors 124. Kelvin connectors 124 include a pair of Kelvin connections 500, 502 each containing two electrical connections. Kelvin connections 500, 502 may be configured in alligator clamps 504, 506, respectively, or the like. Cabling 510, 512 is used to provide a physical electrical connection to the battery tester 102 shown in FIG. 1. Tracking circuitry 520 may include a unique address for use in identifying the Kelvin connector 124. This may also be used for determining placement of the Kelvin connector 124 into the receiving area 110D of the base station 104.

FIG. 6 is a simplified block diagram of base station 104. Base station 104 includes a microprocessor 600 optionally connected to receptacles 110A-D. Using this optional connection, microprocessor 600 may use a physical connection to the tester 102, amp clamp 120, OBDII communicator 122 and Kelvin connectors 124 for communication. This may be for downloading parameters, programming the device, or for other usage. Microprocessor 600 also couples to a communication hub 604. Communication hub 604 provides both wireless and wired communication. For example, information can be communicated to a remote location using wireless or wired communication techniques including WiFi, cellular data transmission, hard wired Ethernet, Bluetooth®, etc. Communication hub 604 may also be used for wirelessly communicating with the various components of the system 100 including the battery tester 102, amp clamp 120, OBDII communicator 122 and Kelvin connectors 124. Optional user input/output may also be provided for the communication hub, for example, for displaying information or receiving a user input. Communication hub 604 may be used for communicating with a local device such as a printer as well as a portable user interface, for example, provided by a tablet computer, cellular phone, or other device including an application specific device. Microprocessor 600 is coupled to a memory 608 which is used to store programming instructions as well as store calibration parameters, etc. Further, test measurements or the like may be stored into the memory 608. Base station 104 includes a power supply 610 used for powering components of the base station 104. Power supply 610 may also be used for recharging batteries carried by the battery tester 102, amp clamp 120, OBDII communicator 122 and Kelvin connectors 124. An optional battery 612 is provided for powering the base station 104 when an external power source is not available.

Base station 104 includes tracking circuitry 620. Tracking circuitry 620 is used to communicate with the tracking circuits carried within the various accessories of the system 100. In a specific example, the tracking circuitry 620 communicates with the tracking circuit 240 of battery tester 102, the tracking circuit 430 of OBDII 122, the tracking circuit 520 of Kelvin connectors 124 for determining when they are placed within their receiving areas 110A-110D of base station 104. This can be used to keep track of the specific accessories and ensure that they are not lost or otherwise misplaced. Further, addressing information can be used to ensure that the correct accessory is returned to the correct base station. One configuration, the tracking circuitry comprises wireless tracking circuitry. One specific configuration is the use of near field communication (NFC) technologies. In such a configuration, the tracking circuitry 620 comprises powered circuitry which is configured to, for example, inductively couple to tracking circuitry in the various accessories or other components of the system 100. Other tracking technologies may also be employed including RFID techniques, etc. Bluetooth® may also be employed. In one additional example configuration, the tracking circuitry provides a locator function. For example, a signal can be transmitted to an accessory whereby the accessory provides an output used to identify its location. One such specific example includes an audible output such as a beeping noise, or a visual output such as a flashing light whereby an operator may locate the accessory. Further, the various components may wirelessly communicate with tester 102 and/or base station 104.

FIG. 7 is a more detailed block diagram of battery tester 102 which includes a forcing function 740 and an amplifier 742 coupled to connectors 500. In the illustration of FIG. 7, connectors 500 are shown as Kelvin connections. The forcing function 740 can be any type of signal which has a time varying component including a transient signal. The forcing function can be through application of a load or by applying an active signal to a battery. A response signal is sensed by amplifier 742 and provided to analog to digital converter 744 which couples to microprocessor 200. Microprocessor 200 operates in accordance with instructions stored in memory 230. Microprocessor 200 can store data into memory 230.

Of course, the illustration of FIG. 7 is simply one simplified embodiment and other embodiments are in accordance with the invention. In the illustrated embodiment microprocessor 200 is configured to measure a dynamic parameter based upon the forcing function 740. This dynamic parameter can be correlated with battery condition as set forth in the above-mentioned Champlin and Midtronics, Inc. patents. However, other types of battery tests circuitry can be used in the present invention and certain aspects of the invention should not be limited to the specific embodiment illustrated herein. FIG. 7 also illustrates an input/output circuitry 222 which can be any other type of input and/or output coupled to microprocessor 46. For example, this can be used to couple to external devices or to facilitate user input and/or output. Although a microprocessor 200 is shown, other types of computational or other circuitry can be used to collect and place data into memory 230.

Although the present invention has been described with reference to preferred embodiments, workers skilled in the art will recognize that changes may be made in form and detail without departing from the spirit and scope of the invention. The devices described herein, in some embodiments, may be capable of wireless communication. The particular wireless communication technique may be implemented as desired. Examples include Bluetooth® communication techniques, near field communication techniques, WiFi communication techniques, cellular communication techniques or others. The optional battery used for jump starting the vehicle may be contained within the battery tester 102 and/or the base station 104. The same battery may also be used to provide the memory saver function. When the battery is contained in the base station 104, this same battery can be used to recharge internal batteries within the various accessories. The memory saver function may be provided using the Kelvin connectors 124 or through some other connections such as a “cigarette lighter” plug. The test performed by the battery tester 102 may be a function of information input by a user, or information received from other sources such as the VIN of the vehicle. The VIN information may be obtained using a barcode scanner or through the connection to the OBDII databus. The battery tester may also include additional functionality such as the ability to review vehicle performance information retrieved from the OBDII databus, or other information. Based upon a particular vehicle, the battery test can be adjusted accordingly. The various memories discussed herein may also include a removable memory configuration such as provided by an SD card, USB memory, etc. The amp clamp 120 may be used in conjunction with the battery test, or may be used for performing other tests on the vehicle. Such tests include measuring starter current, phantom current draws, charging current, etc. 

What is claimed is:
 1. A maintenance device for use with an electrical system of an automotive vehicle, comprising: a hand held electronic battery tester configured to test a battery of the automotive vehicle, the electronic battery tester including battery tester tracking circuitry carried therein which includes address information which identifies the battery tester; and a plurality of battery tester accessories configured to optionally couple to the hand held electronic battery tester, each of the plurality of battery tester accessories including tracking circuitry; a base station including a plurality of receiving areas configured to carry the electronic battery tester and the plurality of battery tester accessories, the base station having a microprocessor configured to detect positioning of the electronic battery tester in a receiving area of the base station using the battery tester tracking circuitry and identify the battery tester based upon the address information, and further configured to detect positioning of the plurality of battery tester accessories in the plurality of receiving area, wherein the electronic battery tester electrically connects to a plug in the receiving area to charge a battery of the battery tester.
 2. The maintenance device of claim 1 including electrical connectors configured to couple to the battery for use in performing a battery test.
 3. The maintenance device of claim 2 wherein the electrical connectors are configured to connect to circuitry in the base station.
 4. The maintenance device of claim 3 wherein the base station includes battery test circuitry.
 5. The maintenance device of claim 4 wherein the battery test circuitry includes a forcing function arranged to apply a forcing function through the cables and circuitry configured to sense a response of the battery to the forcing function.
 6. The maintenance device of claim 4 wherein the hand held electronic battery tester communicates with the battery test circuitry in the base station.
 7. The maintenance device of claim 3 wherein the cables comprise Kelvin connectors.
 8. The maintenance device of claim 3 wherein the cables are for use in providing a jump start to the automotive vehicle.
 9. The maintenance device of claim 8 wherein the base station includes a battery for use in providing the jump start through the cables.
 10. The maintenance device of claim 3 wherein the cables include wireless communication circuitry for communicating with at least one of the hand held electronic battery tester and the base station.
 11. The maintenance device of claim 1 wherein the base station is configured to charge a battery of the hand held electronic battery tester.
 12. The maintenance device of claim 1 wherein the base station is configured to receive a current sensor.
 13. The maintenance device of claim 12 wherein the base station is configured to detect positioning of the current sensor in the base station using current sensor tracking circuitry.
 14. The maintenance device of claim 12 wherein the current sensor includes wireless communication circuitry for communicating with at least one of the hand held electronic battery tester and the base station.
 15. The maintenance device of claim 3 wherein the cables are configured to connect battery test circuitry of the hand held electronic battery tester to the battery.
 16. The maintenance device of claim 12 wherein the current sensor is used for a current acceptance test.
 17. The maintenance device of claim 1 including a battery for providing a memory saver to components of the automotive vehicle.
 18. The maintenance device of claim 17 wherein the memory saver is applied by the hand held electronic battery tester.
 19. The maintenance device of claim 17 wherein the memory saver is applied by the base station.
 20. The maintenance device of claim 1 wherein the electronic battery tester and the base station include wireless communication circuitry for wireless communication therebetween.
 21. The maintenance device of claim 1 wherein the base station includes wireless communication circuitry for communicating with a remote location.
 22. The maintenance device of claim 21 wherein the wireless communication circuitry comprises WiFi circuitry.
 23. The maintenance device of claim 21 wherein the wireless communication circuitry comprises cellular communication circuitry.
 24. The maintenance device of claim 1 including an IR (infrared) temperature sensor configured to sense a temperature.
 25. The maintenance device of claim 24 wherein the IR temperature sensor is contained in the hand held electronic battery tester.
 26. The maintenance device of claim 24 wherein the IR temperature sensor is contained in a current sensor.
 27. The maintenance device of claim 1 including a databus communication module configured to communicate with a databus of the automotive vehicle.
 28. The maintenance device of claim 27 wherein the databus communication module wirelessly communicates with at least one of the electronic battery tests in the base station.
 29. The maintenance device of claim 27 wherein the databus communication module includes an optical scanner.
 30. The maintenance device of claim 29 wherein the optical scanner comprises a bar code scanner.
 31. The maintenance device of claim 1 wherein an electronic battery test is performed based upon a VIN of the vehicle.
 32. The maintenance device of claim 31 including a databus communication circuit configured to communicate with a databus of the vehicle and retrieve the VIN of the vehicle.
 33. The maintenance device of claim 27 wherein the databus communication module is configured to be received in the base station and wherein the base station detects positioning of the databus communication module in the base station using databus communication module tracking circuitry.
 34. The maintenance device of claim 27 wherein the databus communication module is configured to be charged by the base station.
 35. The maintenance device of claim 12 wherein the current sensor is configured to be charged by the base station.
 36. The maintenance device of claim 27 wherein the databus communication module is further configured to provide power to the vehicle for providing a memory saver function to the vehicle.
 37. The maintenance device of claim 1 wherein at least one of the hand held electronic battery tester and the base station includes user I/O circuitry.
 38. The maintenance device of claim 37 wherein the user I/O circuitry comprises a display.
 39. The maintenance device of claim 37 wherein the user I/O circuitry comprises an user input. 